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Surf Forecasts:
Porth Ceriad surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 11 pm Tuesday 16 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Porth Ceriad surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Ceriad sea temperature is
10.0° C
(Which is normal for this time of year)How big are the waves at Porth Ceriad today?
The current surf forecast for Porth Ceriad at 6AM is: 2.3m 7s primary swell from a Southwest direction and 0.2m 14s secondary swell from a West-southwest direction (forecast issued at 11:00pm December 16). The wind direction is predicted to be onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 8ft (2.5m) | 8s |
| Afternoon (17 Dec) | 10ft (3.0m) | 9s |
| Evening (17 Dec) | 7ft (2.1m) | 9s |
Table - waves today at Porth Ceriad. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 15 | 5 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 10 | 21 | 20 | 20 | 19 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 39 | 44 | 143 | 485 | 893 | 1078 | 1283 | 1274 | 714 | 589 | 573 | 423 | 450 | 432 | 419 | 444 | 537 | 821 | 1217 | 1416 | 1449 | 1080 | 771 | 590 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | on | cross- on | on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 6:18AM 3.53 | 6:37PM 3.56 | 6:57AM 3.71 | 7:15PM 3.67 | 7:33AM 3.86 | |||||||||||||||||||
Low Tide / height (m) | 12:59AM 1.02 | 1:23PM 1.01 | 1:39AM 0.93 | 2:03PM 0.86 | 2:16AM 0.84 | 2:41PM 0.74 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:25 | - | - | - | - | - | - | - | 8:25 | - | - | - | - | - | - | - | 8:26 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:01 | - | - | - | - | - | - | - | 4:01 | - | - | - | - | - | - | - | 4:02 | - |
 | |  | |  | | |  |  | | | | | | | |  | | | |  |  | | | |
Rain (mm) | - | - | - | - | 4 | 4 | 2 | 7 | 5 | 1 | - | - | 1 | 1 | 2 | 4 | - | - | - | - | - | - | - | - |
| Temp. °C | 9 | 9 | 9 | 10 | 9 | 10 | 11 | 11 | 11 | 12 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 3 | 1 | -1 | -1 | -2 | -1 | 1 | 3 | 7 | 5 | 4 | 5 | 3 | 0 | 3 | -1 | 0 | 0 | 0 | -2 | 0 | 0 | 1 | 1 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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